Tunable Frequency-Division Duplex RF Front End Using Electrical Balance and Active Cancellation
Tunable Frequency-Division Duplex RF Front End Using Electrical Balance and Active Cancellation
复制标题
使用电气平衡和主动消除的可调谐频分双工射频前端
DOI:
10.1109/tmtt.2018.2851990
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发表时间:
2018
影响因子:
4.3
通讯作者:
Laughlin L
中科院分区:
文献类型:
--
作者:
Laughlin L
This paper presents a novel, tunable, frequency-division duplexing radio frequency (RF) front end that combines passive and active self-interference (SI) cancellation. An electrical-balance duplexer is used to passively cancel transmitter noise in the receive band, and an active canceller is employed to suppress SI in the transmit (Tx)-band. Subsystem specifications are developed, and a system-level analysis of noise and SI powers in this novel architecture is provided, thereby illustrating its operation. A proof-of-concept demonstrator, built from a software-defined radio and discrete RF components, has been characterized across a range of duplex configurations in the 700-950-MHz range and also at 1900 (Long-Term Evolution (LTE) band 3) and 2600 MHz (LTE band 7). The prototype achieves an impressive 6.0-7.4-dB noise figure in the presence of a +27-dBm LTE uplink Tx blocker for duplex separations of 47.5 MHz and above. The duplexer has also been tested against reference sensitivity test cases defined in the 3GPP LTE specification, demonstrating specification compliant sensitivity in LTE bands 28 (700 MHz), 3, and 7.
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DOI:
--
发表时间:
2016
期刊:
2016 IEEE Symposium on VLSI Circuits (VLSI-Circuits)
影响因子:
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作者:
Sameet Ramakrishnan;Lucas Calderin;A. Puglielli;E. Alon;A. Niknejad;B. Nikolić
通讯作者:
B. Nikolić
DOI:
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发表时间:
2018
期刊:
Intelligent Memory Systems
影响因子:
--
作者:
L. Laughlin;Chunqing Zhang;M. Beach;K. Morris;J. Haine;Muhammad Kalimuddin Khan
通讯作者:
Muhammad Kalimuddin Khan
DOI:
--
发表时间:
2016
期刊:
IEEE Transactions on Circuits and Systems - II - Express Briefs
影响因子:
--
作者:
L. Laughlin;Chunqing Zhang;M. Beach;K. Morris;J. Haine
通讯作者:
J. Haine
DOI:
--
发表时间:
2015
期刊:
IEEE Vehicular Technology Conference
影响因子:
--
作者:
L. Laughlin;Chunqing Zhang;M. Beach;K. Morris;J. Haine
通讯作者:
J. Haine
影响因子:
4.3
作者:
P. Bahramzy;P. Olesen;P. Madsen;J. Bojer;S. Barrio;A. Tatomirescu;Peter Bundgaard;A. Morris;G. F. Pedersen
通讯作者:
G. F. Pedersen